function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Begum, Salma & Anis, Shoeba Binte & Khan, Mohd Talib', 19],
    ['Bella, Salvatore & Cupani, Sebastiano & D’Urso, Vera', 1],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 10],
    ['Hayat, Mohammad & Khan, F. R.', 1],
    ['Ikram, Mohsin & Yousuf, Mohammad', 1],
    ['Jawahar, Fatma & Salma, Begum & Binte, Anis Shoeba', 1],
    ['Swezey, O. H.', 1],
    ['Triapitsyn, Serguei V. & Adachi-Hagimori, Tetsuya', 2],
    ['Viggiani, Gennaro', 1],
    ['Walker, Francis', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);